Bulletin Severity Rating:Critical - This update resolves severalnewly discovered, privately and publicly disclosed vulnerabilities. Each vulnerability is documented in its own subsection in the Vulnerability Details section of this bulletin. An attacker who successfully exploited the most severe of these vulnerabilities could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. We recommend that customers apply the update immediately.